Yamaha XS 650 / TX 650 (1980-81) vs Suzuki GSX-R125 Sports Pack (2018-) vs Suzuki Boulevard / Intruder M109R B.O.S.S. (2014-15)
Comparison technical specifications
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| Make: | Yamaha | Suzuki | Suzuki |
| Model: | XS 650 / TX 650 | GSX-R125 Sports Pack | Boulevard / Intruder M109R B.O.S.S. |
| Years: | 1980-81 | 2018- | 2014-15 |
| Engine: | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | Four stroke, single cylinder, DOHC, 4-valve | Four stroke, 54° V-Twin |
| Capacity: | 653 cc / 39.8 cu in | 124.4 cc / 7.6 cu in | 1786 cc / 109 cu. in |
| Bore x Stroke: | 75 x 74 mm | 62 x 41.2 mm | 112 x 90.5 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled |
| Induction: | 2 x Mikuni BS34 carburetors | Electronic fuel injection | EFI, 2 x 56mm throttle bodies |
| Ignition: | Battery, induction coil | Electronic | Electronic ignition (Transistorised) |
| Starting: | Electric and kick | Electric | Electric |
| Transmission: | 5 Speed | 6-Speed, constant mesh | 5 Speed |
| Final Drive: | Chain | Chain | Shaft |
| Front Suspension: | Telescopic forks | Telescopic fork, oil damped | Inverted, 46mm stanchions |
| Rear Suspension: | Dual shock absorbers | Link type monoshock, coil spring, oil damped | Single damper, preload adjustable |
| Front Brakes: | Twin hydraulic discs, 267 mm | Single disc | 2 x 310mm discs, 2 piston calipers |
| Rear Brakes: | Drum | Single disc | Single 274mm disc, 2 piston caliper |
| Front Tyre: | 3.50H-19 4PR | 90/80-17 M/C, tubeless | 130/70 R18 |
| Rear Tyre: | 4.00H-18 4PR | 130/70-17 M/C, tubeless | 240/40 R18 |
| Dimensions: | Length: 2175 mm / 85.6" Width: 780 mm / 30.7" Height: 1090 mm / 42.9" | Length: 1975 mm / 77.8 in Width: 670 mm / 26.3 in Height: 1070 mm / 42.1 in | Length 2450 mm / 95.5 in Width 875 mm / 34.4 in |
| Wheelbase: | 1435 mm / 56.5" | 1300 mm / 51.2 in | 1710 mm / 67.3 in) |
| Ground Clearance: | 150 mm / 5.5" | 150 mm / 5.9 in | 130 mm / 5.1 in |
| Seat Height: | 810 mm / 31.9" | 785 mm / 30.9 in | 705 mm / 27.8 in |
| Fuel Capacity: | 15 Litres / 4.0 US gal | 11 L / 2.9 US gal / 2.4 Imp gal | 19 Litres / 4.3 gal |